CN103753372B - Numerical control turnout grinder - Google Patents
Numerical control turnout grinder Download PDFInfo
- Publication number
- CN103753372B CN103753372B CN201410009460.0A CN201410009460A CN103753372B CN 103753372 B CN103753372 B CN 103753372B CN 201410009460 A CN201410009460 A CN 201410009460A CN 103753372 B CN103753372 B CN 103753372B
- Authority
- CN
- China
- Prior art keywords
- swing arm
- slide unit
- substrate
- guide rail
- driving mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/004—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding rails, T, I, H or other similar profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
Abstract
The present invention relates to a kind of railway maintenance machinery, particularly a kind of Numerical control turnout grinder。Including frame, stress bar, swing arm driving mechanism, clamping body, measuring mechanism, axis positioner；Equipped with swing arm driving mechanism on left substrate；Swing arm driving mechanism is connected with left swing arm, and equipped with vertical adjustment mechanism and horizontal adjusting mechanism on right substrate, the lower end of left substrate and right substrate is respectively provided with left and right clamping body, equipped with walking mechanism on stress bar；The upper end of left and right swing arm by parastate arrange cylinder bright finish guide rail and cylinder flank of tooth guide rail connect, cylinder bright finish guide rail and on cylinder flank of tooth guide rail equipped with slide unit；Equipped with slide unit driving mechanism measuring mechanism on slide unit；The inner side profile of axis positioner is consistent with the web of the rail of road frog rail；The fine groove of axis positioner and heart rail section centrage coincide。Compared with prior art, the geometric accuracy of grinding can meet the curing requirements of high-speed railway switch, and grinding flatness is good, descending grade specification, transition arc are accurate。
Description
Technical field
The present invention relates to a kind of railway maintenance machinery, particularly a kind of Numerical control turnout grinder。
Background technology
Track switch in railway line, through third wheel to rolling for a long time, the section at multiple positions can deform。When deformation reaches to a certain degree, polishing qualified cross dimensions must be trimmed to, with guarantee driving safety。The positions such as the identical stock rail of section in track switch, guard rail can only be carried out mechanical grinding by existing road switch grinder, and the core rail that section is different can only be aided with manual polishing, it is difficult to reach the required precision of high-speed railway maintenance。
Summary of the invention
It is an object of the invention to overcome defect that the polishing precision of existing road switch grinder is low to provide the Numerical control turnout grinder that a kind of precision of polishing is high。
The present invention adopts the following technical scheme that
A kind of Numerical control turnout grinder, including frame, left substrate, right substrate, stress bar, swing arm driving mechanism, slide unit driving mechanism, emery wheel driving mechanism, vertical adjustment mechanism, horizontal adjusting mechanism, clamping body, measuring mechanism, axis positioner；The both sides of frame are respectively provided with left substrate and right substrate, equipped with swing arm driving mechanism on left substrate；Swing arm driving mechanism is connected with left swing arm, and equipped with vertical adjustment mechanism and horizontal adjusting mechanism on right substrate, horizontal adjusting mechanism is connected with right swing arm；The lower end of left substrate and right substrate is respectively provided with left and right clamping body, equipped with walking mechanism on the stress bar between left and right substrate；The upper end of left and right swing arm by parastate arrange cylinder bright finish guide rail and cylinder flank of tooth guide rail connect, cylinder bright finish guide rail and on cylinder flank of tooth guide rail equipped with slide unit；Equipped with slide unit driving mechanism, emery wheel driving mechanism, measuring mechanism on slide unit；The inner side profile of axis positioner is consistent with the web of the rail of track switch core rail；The top of axis positioner is provided with fine groove, and the position of fine groove and core rail section centrage coincide。
Adopting the present invention of technique scheme compared with prior art, the geometric accuracy of grinding can meet the curing requirements of high-speed railway switch, and grinding flatness is good, descending grade specification, transition arc accurate, and automaticity is high。
The preferred version of the present invention is:
Slide unit motor in slide unit driving mechanism is placed in above slide unit, and equipped with gear on the output shaft of motor, gear is meshed with cylinder flank of tooth guide rail。
Drive motor in emery wheel driving mechanism is connected below driving pulley, and driving pulley is connected with driven pulley, and driven pulley place is installed the lower end of axle and connected emery wheel, and the upper end installing axle connects emery wheel feed mechanism。
Housing in measuring mechanism is placed in the protecting tube of slide unit lower surface, the upper/lower terminal of housing is connected to upper end cover and bottom end cover, left arc block and right arc block it is provided with in housing, left arc block and right arc block are between the two equipped with displacement transducer, spring and lower spring it is respectively provided with above and below displacement transducer, the lower end of lower spring is placed in the centre bore of guide pillar, and the lower end of guide pillar connects induction wheel by overcoat；The upper end of upper spring is placed in below upper end cover, and upper end cover is connected above arrangement of clutch, and the power transmission shaft in arrangement of clutch is connected with the upper end of displacement transducer。
Equipped with the first spring between left swing arm and left substrate。
Square hole rail welding in left clamping body is provided with square shaft in the lower section of left substrate, square hole guide rail, is provided with drive screw in square shaft, and one end of drive screw is connected with the six side's overcoats being placed in outside square hole guide rail, square hole overcoat be connected below claw；The bottom of claw is globoidal structure；The outer side waist profile of globoidal structure and wing rail adapts。
Stress bar is that parastate is set to two, the dress of two stress bars by gyroaxis equipped with support, equipped with the road wheel in running gear on support；The side of gyroaxis is provided with pin, and the two ends of pin are connected with two stress bars respectively。
Slide unit is connected by linear bearing with cylinder bright finish guide rail, and slide unit is connected by nylon bearing with cylinder flank of tooth guide rail；Equipped with line laser marker on slide unit。
Swing arm drive motor in swing arm driving mechanism is placed on left substrate, and equipped with driving gear on the output shaft of swing arm drive motor, driving gear is meshed with driven gear by mesomerism gear, by oscillating bearing equipped with hollow axle in the shoulder hole of driven gear；Being provided with nylon axle in hollow axle, driven gear shaft is set with torsion spring, one end of torsion spring is stuck on left swing arm, and the other end is stuck on left substrate；Hollow axle and driven gear shaft are positioned on same axis, and left substrate is provided with proximity switch, and proximity switch is corresponding with the sensing element on left swing arm。
Oscillating bearing is passed through equipped with sliding axle in right swing arm lower end, sliding axle one end is equipped with locking nut, the outer cover of sliding axle is equipped with compression spring, the other end of sliding axle is equipped with vertically adjusting pull bar in vertical adjustment mechanism, vertical pull bar and the cross sliding clock top thread connection of adjusting, the vertical bottom adjusting pull bar is slidably matched with cross sliding clock；One end of cross sliding clock is equipped with the horizontal adjustment pull bar in horizontal adjusting mechanism, and one end of cross sliding clock is placed in the elongated hole of right substrate。
Accompanying drawing explanation
Fig. 1 is the front view of the present invention。
Fig. 2 is the top view of Fig. 1。
Fig. 3 is swing arm driving mechanism map。
Fig. 4 is horizontal and vertical guiding mechanism figure。
Fig. 5 is the structural representation of measuring mechanism。
Fig. 6 is the structural representation of slide unit。
Fig. 7 is the right view of Fig. 1。
Fig. 8 is the structural representation of gripping mechanism。
Fig. 9 is the side view of Fig. 8。
Figure 10 is the left view of Fig. 1。
Figure 11 is the P direction view in Fig. 1。
Figure 12 is the front view of running gear。
Figure 13 is the front view of axis positioner。
Figure 14 is the top view of Figure 13。
Figure 15 is the left view of Figure 13。
Figure 16 is the F portion enlarged drawing in Figure 13。
Figure 17 is the schematic diagram that axis positioner is placed on core rail。
Detailed description of the invention
Below in conjunction with drawings and Examples in detail the present invention is described in detail:
A kind of Numerical control turnout grinder, referring to accompanying drawing 1 to accompanying drawing 17；In figure: frame 1, swing arm drive motor 2, left substrate 3, clamping body 4, road wheel 5, left swing arm 6, sensing element 601, stress bar 7, cylinder flank of tooth guide rail 8, measuring mechanism 9, protecting tube 901, emery wheel 10, right swing arm 11, horizontal adjusting mechanism 12, vertical adjustment mechanism 13, right substrate 14, slide unit 15, emery wheel motor 16, slide unit motor 17, emery wheel drive motor 18；Cylinder bright finish guide rail the 19, first spring 20, oscillating bearing 21, hollow axle 22, nylon axle 23, mesomerism gear 24, driving gear 25, proximity switch 26, torsion spring 27, driven gear 28, locking nut 29, compression spring 30, sliding axle 31, oscillating bearing 32, cross sliding clock 33, vertical adjustment pull bar 34, horizontal adjustment pull bar 35；Induction wheel 36, bottom end cover 37, left arc block 38, upper end cover 39, arrangement of clutch 40, power transmission shaft 41, upper spring 42, data wire outlet 43, displacement transducer 44, right arc plate 45, housing 46, guide pillar 47, overcoat 48；Linear bearing 49, line laser marker 50, nylon bearing 51, gear 52, proximity switch 53；Square hole guide rail 54, drive screw 55, six side's overcoat 56, pin 57, sliding bearing 58, jump ring 59, claw 60, square shaft 61；Pin 62, support 63, gyroaxis 64；Axis positioner 65, fine groove 66, blind hole 67, strong magnet 68, wing rail 69；In driving pulley 70(accompanying drawing 1), in belt 71(accompanying drawing 1), in driven pulley 72(accompanying drawing 1), install in axle 73(accompanying drawing 1), lower spring 74(accompanying drawing 5), core rail 75。
In the present embodiment, the both sides of frame 1 are respectively provided with left substrate 3 and right substrate 14, equipped with swing arm driving mechanism on left substrate 3；Swing arm driving mechanism is connected with left swing arm 6, and equipped with vertical adjustment mechanism and horizontal adjusting mechanism on right substrate 14, horizontal adjusting mechanism is connected with right swing arm 11；The lower end of left substrate 3 and right substrate 14 is respectively provided with left and right clamping body 4, and left and right clamping body 4 is connected by stress bar 7, equipped with running gear on stress bar 7；Frame 1, left substrate 3, right substrate 14 and stress bar 7 constitute a cagelike structure。
The upper end of left and right swing arm 6,11 by parastate arrange cylinder bright finish guide rail 19 and cylinder flank of tooth guide rail 8 connect, cylinder bright finish guide rail 19 and on cylinder flank of tooth guide rail 8 equipped with slide unit 15。
Equipped with slide unit driving mechanism, emery wheel driving mechanism, measuring mechanism on slide unit 15。
The inner side profile of axis positioner 65 is consistent with the web of the rail profile of track switch core rail 75；The top of axis positioner 65 is horizontal structure, and the top of axis positioner 65 is provided with fine groove 66, and the symmetrical centre of fine groove 66 and section centrage coincide, and the lateral profile of axis positioner 65 is provided with blind hole 67, and blind hole 67 is built with strong magnet 68。During use, under the effect of strong magnet 68, closely connected with the web of the rail of core rail 75 inside axis positioner 65, now top fine groove 66 and core rail 75 rail are in same plane to section center, the end face centrage of equivalent core rail 75, are used for positioning。
Slide unit motor 17 in slide unit driving mechanism is placed in the top of slide unit 15, and equipped with gear 52 on the output shaft of slide unit motor 17, gear 52 is meshed with cylinder flank of tooth guide rail 8。
Emery wheel drive motor 18 in emery wheel driving mechanism is connected below driving pulley 71, and driving pulley 71 is connected with driven pulley 72, and driven pulley 72 place is installed the lower end of axle 73 and connected emery wheel 10, and the upper end installing axle 73 connects emery wheel feed mechanism。
Housing 46 in measuring mechanism 9 is placed in the protecting tube 901 of slide unit 15 lower surface, the upper/lower terminal of housing 46 is connected to upper end cover 39 and bottom end cover 37, left arc block 38 and right arc block 45 it is provided with in housing 46, left arc block 38 and right arc block 45, between the two equipped with displacement transducer 44, housing 46 connect data wire outlet 43。
Being respectively provided with spring 42 and lower spring 74 above and below displacement transducer 44, the lower end of lower spring 74 is placed in the centre bore of guide pillar 47, and the lower end of guide pillar 47 connects induction wheel 36 by overcoat 48。
The upper end of upper spring 42 is placed in the lower section of upper end cover 39, and upper end cover 39 is connected above arrangement of clutch, and the power transmission shaft 41 in arrangement of clutch is connected with the upper end of displacement transducer 44。When induction wheel 36 rises and falls on tested surface, displacement transducer 44 just produces corresponding signal, exports 43 conduction to numerical control module by the data wire on housing 46, provides foundation for location, grinding。
Equipped with the first spring 20 between left swing arm 6 and slide unit 15。First spring 20 is torsion spring, and when left swing arm 6 tilts around fulcrum, the load of swing arm drive motor 2 strengthens, and now the first spring 20 can produce reciprocal moment of torsion, the load of partial offset swing arm drive motor 2。Left swing arm 6 and right swing arm 11 are connected respectively through the two ends of bolt with cylinder bright finish guide rail 19 and cylinder flank of tooth guide rail 8。
The structure of left and right clamping body is identical, and it is two that left clamping body is symmetrical arranged, right clamping body too symmetrically state be set to two。Clamping body for being stuck in the two sides being polished track switch wing rail 69 by the machine。
Square hole guide rail 54 in left clamping body is welded in the lower section of left substrate 3, square shaft 61 it is provided with in square hole guide rail 54, being provided with drive screw 55 in the hole of square shaft 61, one end of drive screw 55 is connected with the six side's overcoats 56 being placed in outside square hole guide rail 54, square hole overcoat 56 be connected below claw 60；The bottom of claw 60 is globoidal structure；The outer side waist profile of globoidal structure and wing rail 69 adapts。When External Force Acting is in six side's overcoats 56, drive screw 55 drives square shaft 61 to drive claw 60 to move, it is achieved clamping or unclamp。
Stress bar 7 is set to two in parastate, the dress of two stress bars 7 by gyroaxis 64 equipped with support 63, equipped with the road wheel 5 in running gear on support 63。
Road wheel 5 is set to four, when grinding operation, is upwards turned over by road wheel 5, and under the effect of pin 62, road wheel 5 is limited, when complete machine needs walking on rail or ground, is turned over for 5 times by road wheel。
The side of gyroaxis 64 is provided with pin 62, and the two ends of pin 62 are connected with two stress bars 7 respectively。
Slide unit 15 is connected by linear bearing 49 with cylinder bright finish guide rail 19, and slide unit 15 is connected by nylon bearing 51 with cylinder flank of tooth guide rail 8；Equipped with line laser marker 50 on slide unit 15。The two ends of slide unit 15 and the one side of emery wheel feeding motor 16 are equipped with proximity switch 53 respectively；Amount to three。
Line laser marker 50 is placed on the lower surface of slide unit 15。
Swing arm drive motor 2 in swing arm driving mechanism is placed on left substrate 3, equipped with driving gear 25 on the output shaft of swing arm drive motor 2, driving gear 25 is meshed with driven gear 28 by mesomerism gear 24, by oscillating bearing 21 equipped with hollow axle 22 in the shoulder hole of driven gear 28；The cylindrical of driven gear 28 also bolt equipped with left swing arm 6 interference。
Being provided with nylon axle 23 in hollow axle 22, driven gear 28 axle is set with torsion spring 27, one end of torsion spring 27 is stuck in the hole of left swing arm 6；Hollow axle 22 is placed on left substrate 3, and left substrate 3 is provided with proximity switch 26, and proximity switch 26 is corresponding with the sensing element 601 on left swing arm 6。When proximity switch 26 and sensing element 601 are close to during to minimum range, triggering command signal。
Oscillating bearing 32 is passed through equipped with sliding axle 31 in the lower end of right swing arm 11, sliding axle 31 one end is equipped with locking nut 29, the outer cover of sliding axle 31 is equipped with compression spring 30, the other end of sliding axle 31 is equipped with the vertical adjustment pull bar 34 in vertical adjustment mechanism, vertical pull bar 34 and the cross sliding clock 33 top thread connection of adjusting, the vertical bottom adjusting pull bar 34 is slidably matched with cross sliding clock 33。One end of cross sliding clock 33 is equipped with the horizontal adjustment pull bar 35 in horizontal adjusting mechanism, and one end of cross sliding clock 33 is placed in the elongated hole of right substrate 14, under the effect of horizontal adjustment pull bar 35, can move along elongated hole。
The working method of the machine is:
The machine is placed on track switch to be polished, it is stuck in the outside of two wing rails 69 with clamping body 4, operates horizontal adjustment pull bar 35, make the red line that line laser marker 50 occurs, the symmetrical centre of the fine groove 66 of alignment axis localizer 65, namely the section centrage of track switch core rail 75。Along cylinder bright finish guide rail 19 and cylinder flank of tooth guide rail 8 Mobile Slide 15, the data according to measuring mechanism 9 display, the vertical adjustment pull bar 34 in operation vertical adjustment mechanism 13。
Slide unit 15 is adjusted to the state parallel with track switch core rail 75 end face。Order opens emery wheel drive motor 18 and slide unit motor 17, and then the grinding allowance according to measuring mechanism 9 display, selects suitable pattern to make emery wheel 10 feeding, complete the grinding of track switch core rail 75 end face。After tread grinding completes, selected corresponding circular arc generation mode, start swing arm motor 2 and emery wheel motor 16, both aggregate motions under the support of numerical control module, the excessive arc surface between grinding knockout rail 75 end face and side simultaneously；The grinding of side is similar with the mode of end face grinding。
Claims (9)
1. a Numerical control turnout grinder, including frame, left substrate, right substrate, stress bar, swing arm driving mechanism, slide unit driving mechanism, emery wheel driving mechanism, vertical adjustment mechanism, horizontal adjusting mechanism, clamping body, measuring mechanism, axis positioner；It is characterized in that: the both sides of frame are respectively provided with left substrate and right substrate, equipped with swing arm driving mechanism on left substrate；Swing arm driving mechanism is connected with left swing arm, and equipped with vertical adjustment mechanism and horizontal adjusting mechanism on right substrate, horizontal adjusting mechanism is connected with right swing arm；The lower end of left substrate and right substrate is respectively provided with left and right clamping body, equipped with walking mechanism on the stress bar between left and right substrate；The upper end of left and right swing arm by parastate arrange cylinder bright finish guide rail and cylinder flank of tooth guide rail connect, cylinder bright finish guide rail and on cylinder flank of tooth guide rail equipped with slide unit；Equipped with slide unit driving mechanism, emery wheel driving mechanism, measuring mechanism on slide unit；The inner side profile of axis positioner is consistent with the web of the rail of track switch core rail；The top of axis positioner is provided with fine groove, and the position of fine groove and core rail section centrage coincide；Housing in measuring mechanism is placed in the protecting tube of slide unit lower surface, the upper/lower terminal of housing is connected to upper end cover and bottom end cover, left arc block and right arc block it is provided with in housing, left arc block and right arc block are between the two equipped with displacement transducer, spring and lower spring it is respectively provided with above and below displacement transducer, the lower end of lower spring is placed in the centre bore of guide pillar, and the lower end of guide pillar connects induction wheel by overcoat；The upper end of upper spring is placed in below upper end cover, and upper end cover is connected above arrangement of clutch, and the power transmission shaft in arrangement of clutch is connected with the upper end of displacement transducer。
2. Numerical control turnout grinder according to claim 1, it is characterised in that: the slide unit motor in slide unit driving mechanism is placed in above slide unit, and equipped with gear on the output shaft of motor, gear is meshed with cylinder flank of tooth guide rail。
3. Numerical control turnout grinder according to claim 1, it is characterized in that: the drive motor in emery wheel driving mechanism is connected below driving pulley, driving pulley is connected with driven pulley, and driven pulley place is installed the lower end of axle and connected emery wheel, and the upper end installing axle connects emery wheel feed mechanism。
4. Numerical control turnout grinder according to claim 1, it is characterised in that: equipped with the first spring between left swing arm and left substrate。
5. Numerical control turnout grinder according to claim 1, it is characterized in that: the square hole rail welding in left clamping body is in the lower section of left substrate, square hole guide rail is provided with square shaft, drive screw it is provided with in square shaft, one end of drive screw is connected with the six side's overcoats being placed in outside square hole guide rail, square hole overcoat be connected below claw；The bottom of claw is globoidal structure；The outer side waist profile of globoidal structure and wing rail adapts。
6. Numerical control turnout grinder according to claim 1, it is characterised in that: stress bar is that parastate is set to two, the dress of two stress bars by gyroaxis equipped with support, equipped with the road wheel in running gear on support；The side of gyroaxis is provided with pin, and the two ends of pin are connected with two stress bars respectively。
7. Numerical control turnout grinder according to claim 1, it is characterised in that: slide unit is connected by linear bearing with cylinder bright finish guide rail, and slide unit is connected by nylon bearing with cylinder flank of tooth guide rail；Equipped with line laser marker on slide unit。
8. Numerical control turnout grinder according to claim 1, it is characterized in that: the swing arm drive motor in swing arm driving mechanism is placed on left substrate, equipped with driving gear on the output shaft of swing arm drive motor, driving gear is meshed with driven gear by mesomerism gear, by oscillating bearing equipped with hollow axle in the shoulder hole of driven gear；Being provided with nylon axle in hollow axle, driven gear shaft is set with torsion spring, one end of torsion spring is stuck on left swing arm, and the other end is stuck on left substrate；Hollow axle and driven gear shaft are positioned on same axis, and left substrate is provided with proximity switch, and proximity switch is corresponding with the sensing element on left swing arm。
9. Numerical control turnout grinder according to claim 1, it is characterized in that: oscillating bearing is passed through equipped with sliding axle in right swing arm lower end, sliding axle one end is equipped with locking nut, the outer cover of sliding axle is equipped with compression spring, the other end of sliding axle is equipped with vertically adjusting pull bar in vertical adjustment mechanism, vertical pull bar and the cross sliding clock top thread connection of adjusting, the vertical bottom adjusting pull bar is slidably matched with cross sliding clock；One end of cross sliding clock is equipped with the horizontal adjustment pull bar in horizontal adjusting mechanism, and one end of cross sliding clock is placed in the elongated hole of right substrate。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009460.0A CN103753372B (en) | 2014-01-09 | 2014-01-09 | Numerical control turnout grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009460.0A CN103753372B (en) | 2014-01-09 | 2014-01-09 | Numerical control turnout grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103753372A CN103753372A (en) | 2014-04-30 |
| CN103753372B true CN103753372B (en) | 2016-06-22 |
Family
ID=50520773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410009460.0A Expired - Fee Related CN103753372B (en) | 2014-01-09 | 2014-01-09 | Numerical control turnout grinder |
Country Status (1)
| Country | Link |
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| CN (1) | CN103753372B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180847A (en) * | 2015-09-06 | 2015-12-23 | 江苏润孚机械轧辊制造有限公司 | Tool for measuring center line |
| CN105881173B (en) * | 2016-04-22 | 2018-03-16 | 武汉一冶钢结构有限责任公司 | Welding bead sander |
| CN107815946A (en) * | 2016-06-20 | 2018-03-20 | 蔡留凤 | A kind of intelligent road construction device and its method of work |
| CN106294925B (en) * | 2016-06-29 | 2019-10-22 | 西南交通大学 | A kind of preparation method of heavy haul railway tunnel side grooves structure body stress |
| CN108500783A (en) * | 2018-04-10 | 2018-09-07 | 芜湖立普德机械科技有限公司 | A kind of glacing flatness detection correcting device |
| NL2023916B1 (en) | 2019-09-27 | 2021-05-27 | Volkerwessels Intellectuele Eigendom Bv | Local grinding of a rail |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2093859U (en) * | 1991-05-30 | 1992-01-22 | 王振 | Points polisher |
| CN2193227Y (en) * | 1993-12-31 | 1995-03-29 | 尚尔纯 | Movable switch polishing machine |
| EP0743395A1 (en) * | 1995-05-19 | 1996-11-20 | GEORG ROBEL GmbH & Co. | Device for grinding rails |
| CN1469010A (en) * | 2002-06-28 | 2004-01-21 | �ޱ�����·������е�������ι�˾ | Steel rail sander |
| US7442115B1 (en) * | 2003-05-15 | 2008-10-28 | Racine Railroad Products, Inc. | Railway grinder |
-
2014
- 2014-01-09 CN CN201410009460.0A patent/CN103753372B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2093859U (en) * | 1991-05-30 | 1992-01-22 | 王振 | Points polisher |
| CN2193227Y (en) * | 1993-12-31 | 1995-03-29 | 尚尔纯 | Movable switch polishing machine |
| EP0743395A1 (en) * | 1995-05-19 | 1996-11-20 | GEORG ROBEL GmbH & Co. | Device for grinding rails |
| CN1469010A (en) * | 2002-06-28 | 2004-01-21 | �ޱ�����·������е�������ι�˾ | Steel rail sander |
| US7442115B1 (en) * | 2003-05-15 | 2008-10-28 | Racine Railroad Products, Inc. | Railway grinder |
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| Publication number | Publication date |
|---|---|
| CN103753372A (en) | 2014-04-30 |
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Granted publication date: 20160622 Termination date: 20180109 |